I am sorry to reply to an old thread but I have been busy and just get back to this forum recently and found out a whole lot of changes!

Some feedback:
. Overall changes are good
. New design is nice
. Love the new Yii Logo
. Forum seem to integrate well with the main site

Suggestion:
. Forum header blue is a bit too dark for the overall them of the whole site
. It would be nice to set the theme of the whole site to be fluid rather than a fix width since most people are on bigger and wider screen and it just wasting lot of potential space and too much scrolling.